## Fourier transform

transform does, and how it does it. This podcast accompanies the Plus

article Saving lives: The mathematics of tomography.

How the heat equation inspired the maths that powers the entertainment industry.

**Gavin Harper**, a mathematician and statistician, has put himself right at its centre. He works for Oxford Nanopore Technologies, a company which is developing new technology for analysing molecules and sequencing DNA. With 75 employees from 18 different countries and all sorts of scientific backgrounds, Gavin's work environment is nothing like the solitary paper-and-pencil affair traditionally associated with mathematics.

**Sandy Black**, Professor of Fashion and Textile Design, has combined her love of art and design with her love of mathematics in her career as a knitwear designer. Sandy talks to

*Plus*about the mathematics in fashion, knitting, and how science and fashion could make the world a better place.

**Chris Budd and Cathryn Mitchell**look at the maths that isn't only responsible for these medical techniques, but also for much of the digital revolution.